After reading Li Jing's deductions, Li Shimin frowned slightly.

"Lord Wei, are you saying that I shouldn't have destroyed Tuyuhun?"

Li Jing smiled bitterly upon hearing this.

"Your Majesty, how dare I question Your Majesty's decision? After all, it was I who led the troops to destroy Tuyuhun..."

"However, I have only come to understand this matter in recent years. After our Great Tang destroyed Tuyuhun, Tibet has no rivals on the plateau. In particular, in recent years, they have developed rapidly and even dared to threaten the Great Tang and ask for the princess of the Great Tang."

Li Shimin was speechless upon hearing this.

To be honest, the person he wronged the most in this life was Li Daozong.

After all, the princess who was actually sent to marry a foreign ruler was Li Daozong's eldest daughter!

"You mean, we shouldn't have destroyed Tuyuhun, thus freeing up Tibet from its constraints?"

Li Jing nodded upon hearing this.

"Yes!"

"The Tang Dynasty has a small population. Even if we conquer a large territory, we will not have enough people to garrison and cultivate it."

"Therefore, rather than eliminating Tuyuhun, it is better to leave them to fight against Tibet, letting them kill each other on the plateau. When the people of the Tang Dynasty have multiplied and there are enough people to develop the Western Regions, then we can incorporate the Western Regions into the Tang Dynasty's territory!"

"Same principle!"

"Besides the Xueyantuo, there were also the Uyghurs and the Western Turks."

"The Uyghurs, Western Turks, Shiguo, and Kangguo are all fighting against Xueyantuo. Once we destroy Xueyantuo, these small countries will inevitably lose control."

"Given time, I fear that the chaos caused by the Five Barbarian Tribes will repeat itself!"

"Therefore, in my humble opinion, we should only weaken the Xueyantuo, not eliminate them!"

"The most advantageous option for the Tang Dynasty is to maintain its deterrent power in the Western Regions, so that no small country or tribe dares to oppose it!"